Instruction 4.8 According to the Record of the Registrar's Office at a at a University

question 131

Short Answer

Instruction 4.8
According to the record of the registrar's office at a university, 35% of the students are first-year, 25% are second-year, 16% are third-year and the rest are doing their honours year. Among the first-year, second-year, third-year and honours students, the portion of students who live in a residential college are, respectively, 80%, 60%, 30% and 20%.
-Referring to Instruction 4.8,what is the probability that a randomly selected student is a second-year student who does not live in a residential college?

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Definitions:

Seasonal Effect

A periodic effect that recurs or fluctuates in a predictable pattern over a year due to the change in seasons.

Time Series

A sequence of data points collected or recorded at successive time intervals, often analyzed to identify trends, cycles, and forecasts.

Moving Average Model

A statistical model used for forecasting future values based on past averages of data points.

Three-period Moving Average

A method of smoothing time series data by calculating the average of three consecutive values at a time.